ADC11C125 Datasheet | National Semiconductor

Description The ADC11C125 is a high-performance CMOS analog-todigital converter capable of converting analog input signals into 11-Bit digital words at rates up to 125 Mega Samples Per Second (MSPS). This converter uses a differential, pipelined architecture with digital error correction and an on-chip sample-and-hold circuit to minimize power consumption and the external ponent count, while providing excellent dynamic performance. A unique sample-and-hold stage yields a fullpower bandwidth of 1.1 GHz. The ADC11C125 operates from dual +3.3V and +1.8V power supplies and consumes 608 m W of power at 125 MSPS. The separate +1.8V supply for the digital output interface allows lower power operation with reduced noise. A powerdown feature reduces the power consumption to 5 m W while still allowing fast wake-up time to full operation. In addition there is a sleep feature which consumes 50 m W of power and has a faster wake-up time. The differential inputs provide a full scale differential input swing equal to 2 times the reference voltage. A stable 1.0V internal voltage reference is provided, or the ADC11C125 can be operated with an external reference. Clock mode (differential versus single-ended) and output data format (offset binary versus 2's plement) are pin-selectable. A duty cycle stabilizer maintains performance over a wide range of input clock duty cycles. The ADC11C125 is pin patible with the ADC12C170 and the ADC14155. It is available in a 48-lead LLP package and operates over the industrial temperature range of - 40°C to +85°C. Features - - - - - - - - - - - 1.1 GHz Full Power Bandwidth Internal sample-and-hold circuit Low power consumption Internal precision 1.0V reference Single-ended or Differential clock modes Clock Duty Cycle Stabilizer Dual +3.3V and +1.8V supply operation Power-down and Sleep modes Offset binary or 2's plement output data format Pin-patible: ADC14155, ADC12C170, ADC11C170 48-pin LLP package, (7x7x0.8mm, 0.5mm pin-pitch) Key Specifications -...